Chile's president apologised for writing a slogan associated with Nazi Germany in a government guest book during a visit to Berlin.

The phrase that Sebastián Piñera wrote was "Deutschland über alles" or "Germany above all". It became infamous under the Third Reich and after the Second World War was excised from Germany's national anthem as being too nationalistic.

Mr Piñera said he learned the slogan in school and understood it to be a celebration of German unification under Bismarck.